Expanding on OS and data disks
You should be already familiar with two types of disks that can be provisioned in Azure (we discussed them in Chapter 5):
- OS disk
- Data disk
In Azure, each virtual machine can have a single OS disk attached to it, plus several data disks, which are used as additional storage units for a machine. The number of possible data disks attached to the machine relies on its family and size:
- Memory-optimized Dv2 and Dsv2-series – 8–64 data disks
- Ev4 and Esv4-series – 4–32 data disks
- Mv2-series – 64 data disks
- B-series burstable series – 2–32 data disks
You can find the full list in the Azure documentation: https://learn.microsoft.com/en-us/azure/virtual-machines/sizes. When planning your infrastructure (and considering its capabilities and capacity), this should be the first place where you consult your assumptions. Azure Virtual Machines, with their families and sizes...
